The horizontal cross section of a Coke can or bottle typically reveals a circular shape. This circular cross section represents the volume of the liquid inside, which is uniform in density and composition. If you were to look at the surface of the liquid, it would appear flat, reflecting the curvature of the container's sides.
It is a rectangle which is similar to the base.
Circle
rectangle
When a sphere is cut with a vertical angled plane, the cross-section will be an ellipse. If the sphere is then cut by a horizontal plane, the cross-section will be a circle. Thus, the combination of these two cuts results in an elliptical cross-section from the angled cut and circular cross-sections from the horizontal cuts at various heights.
The horizontal cross section of a triangular prism is a triangle. When you make a horizontal cut through the prism, the shape of the cut reflects the shape of the triangular base, which is consistent throughout the height of the prism. Therefore, regardless of where the cut is made along the height, the cross section will always be a triangle identical to the base.
It is a rectangle which is similar to the base.
If the cylinder is standing on its flat face, the horizontal cross section is a circle. Otherwise, it is a line or a rectangle.
Circle
rectangle
When a sphere is cut with a vertical angled plane, the cross-section will be an ellipse. If the sphere is then cut by a horizontal plane, the cross-section will be a circle. Thus, the combination of these two cuts results in an elliptical cross-section from the angled cut and circular cross-sections from the horizontal cuts at various heights.
A circle
a square
cone
The horizontal cross section of a triangular prism is a triangle. When you make a horizontal cut through the prism, the shape of the cut reflects the shape of the triangular base, which is consistent throughout the height of the prism. Therefore, regardless of where the cut is made along the height, the cross section will always be a triangle identical to the base.
a square
It is sometimes referred to as the shape's "plan".
No because it would be smaller.